效果知识点：css33D场景、3D变换、爱心制作技巧、3D立方*作技巧、自定义动画，原生js DOM节点操作、循环等。
html5表白神器源码：
<!doctype html><!--声明当前文档为html文档-->
<html lang="en"><!--语言为英语-->
<head><!--头部-->
<metacharset="UTF-8"><!--字符编码：utf-8国际编码 gb2312中文编码-->
<metaname="Keywords"content="关键词">
<metaname="Description"content="描述">
<title>Document</title>
<style>/*css样式表的衣柜*/
*{margin:0px;padding:0px;}/*去除默认外边距、内边距*/
body{background:#000;}
.heart3d {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
margin: auto;
width: 100px;
height: 160px;
transform-origin:centercenter center;
transform-style: preserve-3d;
animation: spin 15s infinite linear;
}
#display{width:200px;color:white;font-size:24px;white-space:normal;text-indent:55px;position:absolute;left:100px;top:100px;}
.heart3d [class^="rib"] {
position: absolute;
width: 100px;
height: 160px;
border: solid #f22613;
border-width: 1px 1px 00;
border-radius: 50% 50% 0 /40% 50% 0;
}
.heart3d [class$="1"] {
transform: rotateY(10deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="2"] {
transform: rotateY(20deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="3"] {
transform: rotateY(30deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="4"] {
transform: rotateY(40deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="5"] {
transform: rotateY(50deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="6"] {
transform: rotateY(60deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="7"] {
transform: rotateY(70deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="8"] {
transform: rotateY(80deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="9"] {
transform: rotateY(90deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="10"] {
transform: rotateY(100deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="11"] {
transform: rotateY(110deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="12"] {
transform: rotateY(120deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="13"] {
transform: rotateY(130deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="14"] {
transform: rotateY(140deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="15"] {
transform: rotateY(150deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="16"] {
transform: rotateY(160deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="17"] {
transform: rotateY(170deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="18"] {
transform: rotateY(180deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="19"] {
transform: rotateY(190deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="20"] {
transform: rotateY(200deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="21"] {
transform: rotateY(210deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="22"] {
transform: rotateY(220deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="23"] {
-webkit-transform: rotateY(230deg) rotateZ(45deg) translateX(30px);
transform: rotateY(230deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="24"] {
transform: rotateY(240deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="25"] {
transform: rotateY(250deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="26"] {
transform: rotateY(260deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="27"] {
transform: rotateY(270deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="28"] {
transform: rotateY(280deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="29"] {
transform: rotateY(290deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="30"] {
transform: rotateY(300deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="31"] {
transform: rotateY(310deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="32"] {
transform: rotateY(320deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="33"] {
transform: rotateY(330deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="34"] {
transform: rotateY(340deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="35"] {
transform: rotateY(350deg) rotateZ(45deg) translateX(30px);
}
.heart3d [class$="36"] {
transform: rotateY(360deg) rotateZ(45deg) translateX(30px);
}
@keyframes spin {
to {
transform: rotateY(360deg) rotateX(360deg);
}
}
.per{
width:50px;height:50px;position:absolute;top:0;left:0;right:0;bottom:0;
margin:auto;transform-style:preserve-3d;perspective:800px;
}
.img{width:50px;height:50px;position:absolute;backface-visibility:hidden;
}
.img:nth-child(1){top:-50px;left:0;transform-origin:bottom;
transform:translateZ(30px)rotateX(90deg);}
.img:nth-child(2){top:50px;left:0;transform-origin:top;
transform:translateZ(30px)rotateX(-90deg);}
.img:nth-child(3){top:0px;left:-50px;transform-origin:right;
transform:translateZ(30px)rotateY(-90deg);}
.img:nth-child(4){top:0px;left:50px;transform-origin:left;
transform:translateZ(30px)rotateY(90deg);}
.img:nth-child(6){top:0px;left:0;transform:translateZ(30px);}
.img:nth-child(5){top:0px;left:0;transform:translateZ(0px);}
</style>
</head>
<body><!--身体-->
<divid="display">
</div>
<divclass='heart3d'>
<divclass='rib1'></div>
<divclass='rib2'></div>
<divclass='rib3'></div>
<divclass='rib4'></div>
<divclass='rib5'></div>
<divclass='rib6'></div>
<divclass='rib7'></div>
<divclass='rib8'></div>
<divclass='rib9'></div>
<divclass='rib10'></div>
<divclass='rib11'></div>
<divclass='rib12'></div>
<divclass='rib13'></div>
<divclass='rib14'></div>
<divclass='rib15'></div>
<divclass='rib16'></div>
<divclass='rib17'></div>
<divclass='rib18'></div>
<divclass='rib19'></div>
<divclass='rib20'></div>
<divclass='rib21'></div>
<divclass='rib22'></div>
<divclass='rib23'></div>
<divclass='rib24'></div>
<divclass='rib25'></div>
<divclass='rib26'></div>
<divclass='rib27'></div>
<divclass='rib28'></div>
<divclass='rib29'></div>
<divclass='rib30'></div>
<divclass='rib31'></div>
<divclass='rib32'></div>
<divclass='rib33'></div>
<divclass='rib34'></div>
<divclass='rib35'></div>
<divclass='rib36'></div>
<divclass="per">
<divclass="img"><imgwidth="50" height="50" src="images/1.jpg" /></div>
<divclass="img"><imgwidth="50" height="50" src="images/2.jpg" /></div>
<divclass="img"><imgwidth="50" height="50" src="images/3.jpg" /></div>
<divclass="img"><imgwidth="50" height="50" src="images/4.jpg" /></div>
<divclass="img"><imgwidth="50" height="50" src="images/5.jpg" /></div>
<divclass="img"><imgwidth="50" height="50" src="images/6.jpg" /></div>
</div>
</div>
<script>
var i =0;
var str1 ="对于一个网页制作者来说，对HTML语言一定不会感到陌生，因为HTML语言是所有网页制作的基础。但是如果页面能够方便网友们的使用，友好而大方，甚至像桌面应用程序一样，那么仅仅依靠HTML语言是不够的，JavaScript在这其中扮演着重要的角色。";
var str ="如果，爱一个人，守一份爱情，可以在早春一起去踏青，可以在盛夏一起去赏荷，可以在浅秋一起去观月，可以在深冬一起去寻梅，不厌倦，却欢乐，不平凡，却平淡。那么，此生便无憾了。";
window.onload =function typing(){
var mydiv =document.getElementById("display");
mydiv.innerHTML +=str.charAt(i);
var oBtn =document.getElementById('btn');
i++;
var id =setTimeout(typing,100);
if(i==str.length){
clearTimeout(id);
mydiv.value ="";
mydiv.innerHTML +=""
//alert("程序执行完毕！");
}
}
</script>
</body>
</html>
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